Dell Force10 E1200i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 209
BGP4 Management Information Base (MIB), Important Points to Remember, the PA table. The Next-Hop
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BGP4 Management Information Base (MIB) The FORCE10-BGP4-V2-MIB enhances FTOS BGP Management Information Base (MIB) support with many new SNMP objects and notifications (traps) defined in the draft-ietf-idr-bgp4-mibv2-05. To see these enhancements, download the MIB from the Dell Force10 website, www.force10networks.com. Note: See the Dell Force10 iSupport webpage for the Force10-BGP4-V2-MIB and other MIB documentation. Important Points to Remember • In f10BgpM2AsPathTableEntry table, f10BgpM2AsPathSegmentIndex, and f10BgpM2AsPathElementIndex are used to retrieve a particular ASN from the AS path. These indices are assigned to the AS segments and individual ASN in each segment starting from 0. For example, an AS path list of {200 300 400} 500 consists of two segments: {200 300 400} with segment index 0 and 500 with segment index 1. ASN 200, 300, and 400 are be assigned 0, 1, and 2 element indices in that order. • Unknown optional transitive attributes within a given path attribute (PA) are assigned indices in order. These indices correspond to f10BgpM2PathAttrUnknownIndex field in the f10BgpM2PathAttrUnknownEntry table. • Negotiation of multiple instances of the same capability is not supported. F10BgpM2PeerCapAnnouncedIndex and f10BgpM2PeerCapReceivedIndex are ignored in the peer capability lookup. • Inbound BGP soft-reconfiguration must be configured on a peer for f10BgpM2PrefixInPrefixesRejected to display the number of prefixes filtered due to a policy. If BGP soft-reconfig is not enabled, the denied prefixes are not accounted for. • F10BgpM2AdjRibsOutRoute stores the pointer to the NLRI in the peer's Adj-Rib-Out. • PA Index (f10BgpM2PathAttrIndex field in various tables) is used to retrieve specific attributes from the PA table. The Next-Hop, RR Cluster-list, Originator ID attributes are not stored in the PA Table and cannot be retrieved using the index passed in. These fields are not populated in f10BgpM2PathAttrEntry, f10BgpM2PathAttrClusterEntry, f10BgpM2PathAttrOriginatorIdEntry. • F10BgpM2PathAttrUnknownEntry contains the optional-transitive attribute details. • Query for f10BgpM2LinkLocalNextHopEntry returns default value for Link-local Next-hop. • RFC 2545 and the f10BgpM2Rfc2545Group are not supported. • An SNMP query will display up to 89 AS paths. A query for a larger AS path count will display as "..." at the end of the output. • SNMP set for BGP is not supported. For all peer configuration tables (f10BgpM2PeerConfigurationGroup, f10BgpM2PeerRouteReflectorCfgGroup, and f10BgpM2PeerAsConfederationCfgGroup), an SNMP set operation will return an error. Only SNMP queries are supported. In addition, the f10BgpM2CfgPeerError, f10BgpM2CfgPeerBgpPeerEntry, and f10BgpM2CfgPeerRowEntryStatus fields are to hold the SNMP set status and are ignored in SNMP query. • The AFI/SAFI is not used as an index to the f10BgpM2PeerCountersEntry table. The BGP peer's AFI/ SAFI (IPv4 Unicast or IPv6 Multicast) is used for various outbound counters. Counters corresponding to IPv4 Multicast cannot be queried. Border Gateway Protocol IPv4 (BGPv4) | 209
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1,139
-
1,140
-
1,141
-
1,142
-
1,143
-
1,144
-
1,145
-
1,146
-
1,147
-
1,148
-
1,149
-
1,150
-
1,151
-
1,152
-
1,153
-
1,154
-
1,155
-
1,156
-
1,157
-
1,158